13421545031 has 4 divisors (see below), whose sum is σ = 13428813552. Its totient is φ = 13414276512.

The previous prime is 13421545003. The next prime is 13421545073. The reversal of 13421545031 is 13054512431.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13421545031 is a prime.

It is a super-2 number, since 2×13421545031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13421544985 and 13421545003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13421545091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3631490 + ... + 3635183.

It is an arithmetic number, because the mean of its divisors is an integer number (3357203388).

Almost surely, 2^13421545031 is an apocalyptic number.

13421545031 is a deficient number, since it is larger than the sum of its proper divisors (7268521).

13421545031 is an equidigital number, since it uses as much as digits as its factorization.

13421545031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7268520.

The product of its (nonzero) digits is 7200, while the sum is 29.

The spelling of 13421545031 in words is "thirteen billion, four hundred twenty-one million, five hundred forty-five thousand, thirty-one".